// 子元素水平排列
.flex-horizon-box {
    display: flex;
    box-sizing: border-box;
}
.flex-horizon-box-wrap {
    display: flex;
    flex-wrap: wrap;
    box-sizing: border-box;
}

// 子元素垂直排列
.flex-vertical-box {
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
}

.flex-vertical-box-wrap {
    display: flex;
    flex-wrap: wrap;
    flex-direction: column;
    box-sizing: border-box;
}

.flex-between {
    display: flex;
    justify-content: space-between;
}

.flex-around {
    display: flex;
    justify-content: space-around;
}

// 子元素水平垂直居中
.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

// 子元素水平居中
.flex-hcenter {
    display: flex;
    justify-content: center;
}

// 子元素垂直居中
.flex-vcenter {
    display: flex;
    align-items: center;
}

// 右对齐
.flex-end {
    display: flex;
    justify-content: flex-end;
    align-items: flex-end;
}

// 右对齐
.flex-start {
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
}

// 占用剩余部分
.flex-auto {
    flex: 1;
}
